Paper-I
Section A

Write short notes on any four of the following. Each not exceeding 150 words (10 ×

Acid rain

Slow-release N-fertilizers

Herbicide safeners

Opportunity cost

Vermicompost

Answer the following questions

Enlist the qualities of a good seed. What happens when inferior quality seed is used for sowing of a field crop

Suggest that ideal conditions which should be met while sowing of seeds in the field

Give a brief account of point and non-point sources of air pollutants. Enumerate the major effects of air pollutants on vegetation. Against each of the effects, name an air pollutant which is responsible

Answer the following questions

What are the features of a good cropping system

Suggest procedures for assessing suitability of different multiple cropping systems

Section B

Differentiate between the following pairs in not more than 150 words each. Attempt any four: (10 ×

Soil pH and Soil Eh

Chemigation and Fertigation

Soil permeability and Hydraulic conductivity

Diversified farming and Mixed farming

Weathering and Withering processes.

What are the causes of infertility of acid lateritic soils? Suggest measures for reclamation and management of such soils, and enumerate the advantages of such measures

What is the role of water in plants? Give a brief account of the plant, soil and climatic criteria for scheduling irrigation

What are the objectives of farm management? Suggest measures to reverse the trend of population migration from rural to urban areas in India